Home / 27,664.92-38,173.68-15,729.30

Finding the Fourth Proportional to 27,664.92, 38,173.68 and 15,729.30

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Solution

The fourth proportional to 27,664.92, 38,173.68 and 15,729.30 is: 21,704.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,664.92 : 38,173.68 = 15,729.30 : x
  2. Step 2: Convert to fraction form
    27,664.92/38,173.68 = 15,729.30/x
  3. Step 3: Cross multiply
    27,664.92x = 38,173.68 × 15,729.30
  4. Step 4: Simplify right side
    27,664.92x = 600,445,264.82
  5. Step 5: Solve for x
    x = 600,445,264.82/27,664.92
  6. Step 6: Final answer
    x = 21,704.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.